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São Tomé

$1,932+ Cheap flights from Dulles Intl (IAD) to São Tomé (TMS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — TMS
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Dulles Intl to São Tomé

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to São Tomé (TMS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 12, 2025.

Round-trip from

$1,932
(Priceline)
From Washington, D.C. Dulles Intl to Sao Tome Is
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Find flight deals from Dulles Intl to São Tomé

Cheapest flights from Dulles Intl to São Tomé
Explore the most affordable flight options available from Dulles Intl to São Tomé. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Priceline deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/910:20 pmIAD - TMS
2 stops39h 15mTAP AIR PORTUGAL
Wed 7/167:40 pmTMS - IAD
3 stops39h 40mTAP AIR PORTUGAL
Deal found 6/11$1,932
This SmartFares deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/98:45 pmIAD - TMS
3 stops40h 50mMultiple Airlines
Wed 7/167:40 pmTMS - IAD
3 stops48h 35mMultiple Airlines
Deal found 6/11$2,113
This oojo deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/910:55 amIAD - TMS
3 stops26h 45mEthiopian Air
Wed 7/167:00 amTMS - IAD
4 stops29h 55mEthiopian Air
Deal found 6/11$2,565

Cheapflights Fare Finder

Customize your flight search to find flights from Dulles Intl to São Tomé that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to São Tomé that are best for you.

Fly from

Dulles Intl

Fly to

São Tomé

Route

Depart

Return

Price

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Wed 7/9

10:20 pm-5:35 pm

2 stops39h 15m

Sao Tome Is

Wed 7/16

7:40 pm-7:20 am

3 stops39h 40m

$1,932

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Wed 7/9

8:45 pm-5:35 pm

3 stops40h 50m

Sao Tome Is

Wed 7/16

7:40 pm-4:15 pm

3 stops48h 35m

$2,113

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Wed 7/9

10:55 am-5:40 pm

3 stops26h 45m

Sao Tome Is

Wed 7/16

7:00 am-8:55 am

4 stops29h 55m

$2,565

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Best time to book a flight from Dulles Intl to São Tomé

Have a flexible travel schedule? Discover the best time to fly to São Tomé from Dulles Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing São Tomé

Get insights into the airlines that provide service to São Tomé. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to São Tomé. Reviews last updated June 12, 2025.
Ethiopian Air
7.2
Good
781 reviews

Comfort

7.1

Crew

7.5

Boarding

7.2

Entertainment

6.7

Food

6.9

Overall

7.2

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - ADD

Easy boarding process and on time flight is what I liked Quality of food was poor Sat on middle row seat 35 where there is better leg room. However, crew and passengers walked all over the three of us who sat on that row to use it as a short cut to use the restrooms. Even letting the crew members didn't help. We could not relax during the flight.
Ethiopian Air
7.2
Good
781 reviews
Ethiopian Air
7.2
Good
781 reviews

Comfort

7.1

Crew

7.5

Boarding

7.2

Entertainment

6.7

Food

6.9

Overall

7.2

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - ADD

Easy boarding process and on time flight is what I liked Quality of food was poor Sat on middle row seat 35 where there is better leg room. However, crew and passengers walked all over the three of us who sat on that row to use it as a short cut to use the restrooms. Even letting the crew members didn't help. We could not relax during the flight.
TAP AIR PORTUGAL
7.1
Good
1,885 reviews
Ethiopian Air
7.2
Good
781 reviews

Comfort

7.1

Crew

7.5

Boarding

7.2

Entertainment

6.7

Food

6.9

Overall

7.2

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - ADD

Easy boarding process and on time flight is what I liked Quality of food was poor Sat on middle row seat 35 where there is better leg room. However, crew and passengers walked all over the three of us who sat on that row to use it as a short cut to use the restrooms. Even letting the crew members didn't help. We could not relax during the flight.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to São Tomé. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to São Tomé from Washington, D.C. Dulles Intl?

    Sao Tome Is (TMS) is the airport you will fly into if you book a flight from Washington, D.C. Dulles Intl to São Tomé. You should not have trouble finding flights to Sao Tome Is from Washington, D.C. Dulles Intl; the airport handles an average of 0 inbound flights from Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the São Tomé airport from Washington, D.C. Dulles Intl. It is only a 3.1 mi journey from Sao Tome Is (TMS) to São Tomé’s city center.

  • Can I find deals for flights from Dulles Intl to São Tomé that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to São Tomé flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to São Tomé?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to São Tomé.

  • Can I find deals for business class flights from Dulles Intl to São Tomé?

    Yes. Cheapflights offers flight deals from Dulles Intl to São Tomé by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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